<template>
  <div>
    <el-form ref="form" label-width="80px">
      <el-form-item label="SPU名称">{{spu.spuName}}</el-form-item>
      <el-form-item label="SKU名称">
        <el-input placeholder="sku名称" v-model="skuInfo.skuName"></el-input>
      </el-form-item>
      <el-form-item label="价格(元)">
        <el-input placeholder="价格(元素)" type="number" v-model="skuInfo.price"></el-input>
      </el-form-item>
      <el-form-item label="重量(千克)">
        <el-input placeholder="重量(千克)" v-model="skuInfo.weight"></el-input>
      </el-form-item>
      <el-form-item label="规格描述">
        <el-input type="textarea" rows="4" v-model="skuInfo.skuDesc"></el-input>
      </el-form-item>
      <el-form-item label="平台属性">
        <el-form :inline="true" ref="form" label-width="80px">
          <el-form-item :label="attr.attrName" v-for="(attr,index) in attrInfoList" :key="attr.id">
            <el-select placeholder="请选择" v-model="attr.attrIdAndValueId">
              <el-option :label="attrValue.valueName" :value="`${attr.id}:${attrValue.id}`" v-for="(attrValue,index) in attr.attrValueList" :key="attrValue.id"></el-option>
            </el-select>
          </el-form-item>
        </el-form>
      </el-form-item>
      <el-form-item label="销售属性">
        <el-form :inline="true" ref="form" label-width="80px">
          <el-form-item :label="saleAttr.saleAttrName" v-for="(saleAttr,index) in spuSaleAttrList" :key="saleAttr.id">
            <el-select placeholder="请选择" v-model="saleAttr.attrIdAndValueId">
              <el-option :label="saleAttrValue.saleAttrValueName" :value="`${saleAttr.id}:${saleAttrValue.id}`" v-for="(saleAttrValue,index) in saleAttr.spuSaleAttrValueList" :key="saleAttrValue.id"></el-option>
            </el-select>
          </el-form-item>
        </el-form>
      </el-form-item>
      <el-form-item label="图片列表">
        <el-table style="width: 100%" border :data="spuImageList"  @selection-change="handleSelectionChange">
          <el-table-column type="selection" prop="prop" width="80">
          </el-table-column>
          <el-table-column prop="prop" label="图片" width="width">
             <template slot-scope="{row,$index}">
                <img :src="row.imgUrl" style="width:100px;height:100px">
             </template>
          </el-table-column>
          <el-table-column prop="imgName" label="名称" width="width">
          </el-table-column>
          <el-table-column prop="prop" label="操作" width="width">
              <template slot-scope="{row,$index}">
                  <el-button type="primary" v-if="row.isDefault==0" @click="changeDefault(row)">设置默认</el-button>
                  <el-button v-else>默认</el-button>
              </template>
          </el-table-column>
        </el-table>
      </el-form-item>
      <el-form-item>
        <el-button type="primary" @click="save">保存</el-button>
        <el-button @click="cancel">取消</el-button>
      </el-form-item>
    </el-form>
  </div>
</template>

<script>
export default {
  name: "",
  data() {
    return {
      //存储图片的信息
      spuImageList: [],
      //存储销售是属性
      spuSaleAttrList: [],
      //存储平台属性的数据
      attrInfoList: [],
      //收集sku数据的字段
      skuInfo: {
        //第一类收集的数据：父组件给的数据
        category3Id: 0,
        spuId: 0,
        tmId: 0,
        //第二类：需要通过数据双向绑定v-model收集
        skuName: "",
        price: 0,
        weight: "",
        skuDesc: "",
        //第三类：需要自己书写代码
        //默认图片
        skuDefaultImg: "",
        //收集图片的字段
        skuImageList: [
          // {
          //   id: 0,
          //   imgName: "string",
          //   imgUrl: "string",
          //   isDefault: "string",
          //   skuId: 0,
          //   spuImgId: 0,
          // },
        ],
        //平台属性
        skuAttrValueList: [
          // {
          //   attrId: 0,
          //   valueId: 0,
          // },
        ],
        //销售属性
        skuSaleAttrValueList: [
          // {
          //   id: 0,
          //   saleAttrId: 0,
          //   saleAttrName: "string",
          //   saleAttrValueId: 0,
          //   saleAttrValueName: "string",
          //   skuId: 0,
          //   spuId: 0,
          // },
        ],


      },
      spu:{},
      //收集图片的数据字段:但是需要注意，收集的数据目前缺少isDefault字段，将来提交给服务器数据的时候，需要整理参数
      imageList:[]
    };
  },
  methods: {
    //获取SkuForm数据
    async getData(category1Id, category2Id, spu) {
      //收集父组件给予的数据
      this.skuInfo.category3Id = spu.category3Id;
      this.skuInfo.spuId = spu.id;
      this.skuInfo.tmId = spu.tmId;
      this.spu = spu;
      //获取图片的数据
      let result = await this.$API.spu.reqSpuImageLIst(spu.id);
      if (result.code == 200) {
        let list = result.data;
        list.forEach(item=>{
            item.isDefault = 0;
        });
        this.spuImageList = list;
      }
      //获取销售属性的数据
      let result1 = await this.$API.spu.reqSpuSaleAttrList(spu.id);
      if (result1.code == 200) {
        this.spuSaleAttrList = result1.data;
      }
      //获取平台属性的数据
      let result2 = await this.$API.spu.reqAttrInfoList(
        category1Id,
        category2Id,
        spu.category3Id
      );
      if (result2.code == 200) {
        this.attrInfoList = result2.data;
      }
    },
    //table表格复选框按钮的事件
    handleSelectionChange(params){
       //获取到用户选中图片的信息数据，但是需要注意，当前收集的数据当中，缺少isDefault字段
       this.imageList = params;
    },
    //排他操作
    changeDefault(row){
      //图片列表的数据的isDefault字段变为 0
      this.spuImageList.forEach(item=>{
          item.isDefault = 0;
      });
      //点击的那个图片的数据变为1
      row.isDefault = 1;
      //收集默认图片的地址
      this.skuInfo.skuDefaultImg = row.imgUrl;
    },
    cancel(){
      //自定义事件，让父组件切换场景0
      this.$emit('changeScenes',0);
      //清除数据
      Object.assign(this._data,this.$options.data());
    },
    //保存按钮的事件
   async save(){
      //整理参数
      //整理平台属性
      const {attrInfoList,skuInfo,spuSaleAttrList,imageList} = this;
      //整理平台属的数据
     skuInfo.skuAttrValueList = attrInfoList.reduce((prev,item)=>{
         if(item.attrIdAndValueId){
           const [attrId,valueId]  = item.attrIdAndValueId.split(":");
            prev.push({attrId,valueId});
         }
         return prev;
      },[]);
      //整理销售属性
     skuInfo.skuSaleAttrValueList = spuSaleAttrList.reduce((prev,item)=>{
         if(item.attrIdAndValueId){
           const [saleAttrId,saleAttrValueId] = item.attrIdAndValueId.split(':');
           prev.push({saleAttrId,saleAttrValueId});
         }
         return prev;
      },[]);
     //整理图片的数据
     skuInfo.skuImageList = imageList.map(item=>{
         return {
           imgName:item.imgName,
           imgUrl:item.imgUrl,
           isDefault:item.isDefault,
           spuImgId:item.id,
         }
     });
     //发请求
     let result  = await this.$API.spu.reqAddSku(skuInfo);
     if(result.code==200){
        this.$message({type:'success',message:'添加SKU成功'})
        this.$emit('changeScenes',0);
     }
    }
  },
};
</script>

<style scoped>
</style>
